Moishe Safdie's residence complex, Habitat 67, designed as a model of prefab housing, was a standout at Montreal's Expo '67 world fair and is now a landmark of architecture in Canada. When Byron Peart and Stefan Weisgerber bought three of the concrete cubes, gutted and left empty by the previous owner, they took the two-level space and transformed it into an efficient and refined home echoing the creative modernism of Safdie's design. The result is a modernist unit that is both timeless and classic.